Carrier profile · USDOT 216333 · Updated Jun 13, 2026
Interstate Power 7 Light
DBA ALLIANT ENERGY
540 power unitsDUBUQUE, IA50/100
AUTHORITY STATUS UNKNOWNRATED SATISFACTORY
Identity & Federal
The official FMCSA identity — legal name, DBA, addresses, contact, officers, and registration — alongside the daily-captured federal-record activity feed, monitored daily by Vektor.
Location
- Physical address
- 1000 MAIN STREET, DUBUQUE, IA, 52004-0769
- Mailing address
- PO BOX 769, DUBUQUE, IA, 52004-0769
- Operation
- Interstate
Contact
- Phone
- (563) 584-7338
- Fax
- (563) 557-2265
- Web domain
- alliantenergy.com
Registration
- USDOT / docket
- 216333
- First registered
- Jul 7, 1982
- Last MCS-150
- May 6, 2002 · 6,240,000 mi (2001)
- FMCSA safety rating
- Satisfactory · Mar 22, 1991
- D-U-N-S
- 6941553
Fleet (self-reported · MCS-150)
MCS-150 filing history· biennial-update cadence
Per-filing MCS-150 history (each biennial update + the fleet/mileage it reported) is being captured from the daily federal feed and will appear here as we capture the full history.
Federal record activity· monitored daily by Vektor
No licensing or insurance changes captured since Vektor began monitoring this carrier (June 2026). Quiet is usually good.